2023 Toyota Sequoia Problems: 1 Issues Every Owner Should Know
2023 model year · 0+ owner reports · Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2023 Toyota Sequoia has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $100 to $2,000. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2023-2025 Toyota Sequoia i-FORCE MAX, the 2023+ Sequoia with the i-FORCE MAX twin-turbo V6 hybrid powertrain has experienced cooling system issues related to the added complexity of cooling both the twin-turbo engine and hybrid battery system. Owners report coolant loss with no visible external leak (internal leak at turbo coolant lines), electric cooling fan running continuously at high speed even in mild weather, and occasional overheating warnings during towing. The hybrid battery cooling circuit is separate from the engine cooling circuit and has its own failure modes.
Common Symptoms
- Coolant level dropping with no visible leak
- Cooling fans running at high speed constantly
- Overheating warning while towing
- Sweet coolant smell from engine bay
- Hybrid system reduced power warning
- Engine temperature gauge reading higher than normal
How to Fix
For coolant loss: have the dealer pressure test both the engine and turbo cooling circuits. Common leak points are the turbo coolant feed/return lines and the intercooler. For continuous fan operation: the hybrid battery cooling fans have an independent control module — check for DTCs related to battery temperature management. For towing overheating: ensure the transmission cooler and auxiliary cooler (if equipped with tow package) are functioning. Toyota has issued TSBs addressing cooling system software calibration. Verify all cooling system software is at the latest version.
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- NoteCheck coolant level weekly during the first year of ownership. The twin-turbo system has many more coolant connections than a naturally aspirated engine. Catching a small leak early prevents overheating damage.
- UpgradeGates coolant hose — OEM-grade reinforced rubber (Gates Coolant Hose)
- UpgradePrestone 50/50 pre-mixed coolant — compatible with all colors (Prestone Coolant Antifreeze 50/50)
- UpgradeTYC cooling fan assembly — complete bolt-on replacement (TYC Cooling Fan Assembly)
- UpgradeDorman cooling fan motor — OE replacement (Dorman Cooling Fan Motor)